at some point for five years ago, it became interested in solving other problems, not just information problems but problems for digital technology could make a material difference. eric: the most obvious is self driving cars. we have been working on that as a research project. david: you feel safe when you are driving? eric: i get on the car on the highway in california and it is driving and i decided, it is following too close and i complained to the engineer who said, no, no we are exactly right and of course they got it right. it gets off of the freeway and parks itself and all of that. in another case, i am driving, non-driving in the self driving car and it turns left with a mother and a child crossing the street illegally. i am going, oh no this is the movie we see, and it stops. the technology works. it works because it has a very powerful laser imager which sees more accurately than we do.